US5494081A - Wire twister pinion and assembly - Google Patents
Wire twister pinion and assembly Download PDFInfo
- Publication number
- US5494081A US5494081A US08/187,200 US18720094A US5494081A US 5494081 A US5494081 A US 5494081A US 18720094 A US18720094 A US 18720094A US 5494081 A US5494081 A US 5494081A
- Authority
- US
- United States
- Prior art keywords
- wire
- pinion
- bearing block
- journal portions
- opposite ends
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F15/00—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire
- B21F15/02—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire wire with wire
- B21F15/04—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire wire with wire without additional connecting elements or material, e.g. by twisting
Definitions
- the present invention relates to an apparatus for wire-rising and, more particularly, to a novel wire twister pinion gear used in a wire-tieing machine.
- Pneumatic, hydraulic, or electric wire-tieing machines having means for gripping and twisting two wires, or opposite ends of the same wire, together, are well-known.
- One such machine sold by U.S. Wire-Tie Systems, a unit of the assignee of the present application, is known as the Model-1302 Portable Pneumatic Wire-Tieing Machine.
- This machine utilizes a slotted wire-twisting pinion having a reduced diameter journal portions extending from opposite ends of a central gear portion.
- the teeth of the gear portion are, in effect, cantilevered with respect to the journals. Twister gears are subject to considerable stress and wear during a wire-twisting operation, and it has been found that gears of the type heretofore in use may be subject to breakage and undue wear.
- a more specific object of the present invention is to provide a novel twister pinion of the above-described type, constructed so as to be more resistant to breakage.
- a still further object of the present invention is to provide a novel pinion of the above-described type constructed so as to be easily mountable in a simple and economical bearing structure.
- a slotted pinion body having journal portions at opposite ends thereof of predetermined diameter.
- Gear teeth are formed in a central body portion between the journal portions.
- the central body portion has a diameter defined by outer crests of the gear teeth, which is substantially the same as the diameter of the journal portions, so that opposite radially extending ends of the teeth merge with, and are supported by, the journal portions.
- FIG. 1 is a simplified perspective view of a wire-tieing machine in which a wire twister pinion incorporating features of the present invention may be installed;
- FIG. 2 is an enlarged perspective view, partially broken away, showing a wire twister pinion constructed in accordance with the present invention, mounted in a bearing block;
- FIG. 3 is a sectional view taken along line 3--3 in FIG. 2;
- FIG. 4 is a side elevational view of a wire twister pinion incorporating features of the present invention.
- FIG. 5 is a sectional view taken along line 5--5 in FIG. 4;
- FIG. 6 is a fragmentary view showing ends of a wire twisted and tied by a twister pinion of the present invention
- FIG. 7 is a side elevational view of a wire twister pinion constructed in accordance with the prior art.
- FIG. 8 is an end view of the prior art twister pinion shown in FIG. 7.
- FIGS. 2 through 5 a wire twister pinion 10 incorporating features of the present invention, is shown in FIGS. 2 through 5.
- This pinion may be used in various wire-tieing machines of known constructions, so that such machines need not be described in detail herein.
- FIG. 1 provides a simplified illustration of one such machine 12, in which the pinion 10 is mounted in a bearing block 14.
- the machine comprises a pneumatic motor 16 adapted to drive the pinion 10 through gearing, not shown, mounted within a housing 18.
- the machine may also be hydraulically or electrically operated without departing from the scope of the invention.
- the machine 12 may be used for twisting or tieing together end portions 20 and 22 of a wire 24 in the manner shown in FIG. 6.
- the portions 20 and 22 of the wire are inserted into the twister pinion 10 through a slot 26 in the side of the block 14.
- the wire is frequently used to bundle one or more articles and, therefore, it is desirable to place the wire under tension, so that it is drawn tightly around the articles. This is accomplished by gripping one end of the wire by a suitable gripper means, not shown, and acting on the wire with a tensioning wheel 28, indicated generally in FIG. 1.
- the pneumatic motor 16 is actuated so as to drive the twister pinion 10 for tieing the end portions of the wire together, as shown in FIG. 6.
- This prior art pinion comprises a body having a central slotted gear portion 32 with gear teeth 34 of conventional profile.
- the pinion body also includes journal portions 36 and 38 at opposite ends thereof.
- the journal portions 36 and 38 have a diameter which is greatly reduced as compared with the diameter of an imaginary circle defined by outer crests 40 of the gear teeth 34.
- the gear teeth 34 are cantilevered with respect to the journal portions of the pinion body.
- opposite end faces 42 and 44 of the gear teeth are free and unsupported relative to the journal portions 36 and 38, as shown best in FIG. 7.
- the wire twister pinion is subjected to considerable forces and pressures when it is driven, so as to twist the wire 24 into the condition shown in FIG. 6. Such pressures are increased significantly as the hardness of the wire, which is to be tied, increases. It has been found, that the relatively small diameter bearing surfaces of the journals 36 and 38, and the mating bearing, not shown, in the machine in which they are mounted may be subject to excessive wear. Furthermore, the cantilevered and unsupported teeth 34 may be subject to undue breakage. Such wear and breakage is reduced or eliminated by constructing a wire twisting pinion in accordance with the present invention, as described below.
- the wire twister pinion 10 of the present invention comprises a pinion body 46 having a central gear portion 48 and opposite end journal portions 50 and 52.
- a slot 54 is formed in the pinion body for receiving the wire to be twisted.
- a central portion 60 of the slot 54 is defined by converging wall sections 62 and 64, so as to have a width similar to and slightly larger than the diameter of the wire 24 to be twisted.
- the central gear portion 48 of the pinion body is formed with gear teeth 66. These gear teeth have mid-portions with a conventional gear tooth profile, as indicated in FIG. 3. However, it is important to note that, in accordance with the present invention, an imaginary circle defined by crests 70 of the teeth 66 has a diameter which is slightly less than, and preferably similar to, the outer diameter of the journal end portions 50 and 52 of the pinion body. With this arrangement, the bearing surfaces of the journal portions are relatively large in diameter, as compared with the prior art pinion described above. Furthermore, a simple and economical mounting for the pinion 10 can be provided by boring a straight hole 67 in the bearing block 14, since the teeth 66 will not interfere with the surface of the hole 67.
- opposite ends of the teeth 66 are of progressively decreasing height and have root surfaces 68 of concave configuration, so that they gradually extend from a flat bottom portion 69 substantially to the full diameter of the journal portions 50 and 52. Furthermore, as shown best in FIGS. 2 and 4, the circumferential width of the crests 70 of the teeth gradually increases from straight central portions 71 of the teeth toward the opposite journal portions of the pinion body.
- the pinion may be easily mounted simply by inserting it into a drilled aperture 67 in the bearing block 14. As indicated in FIG. 2, the pinion may be fixed against axial displacement within the bearing block by any suitable means, such as yolks 72 and 74, which are adapted to retain opposite ends of the wire during the twisting operation.
Abstract
Description
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/187,200 US5494081A (en) | 1994-01-26 | 1994-01-26 | Wire twister pinion and assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/187,200 US5494081A (en) | 1994-01-26 | 1994-01-26 | Wire twister pinion and assembly |
Publications (1)
Publication Number | Publication Date |
---|---|
US5494081A true US5494081A (en) | 1996-02-27 |
Family
ID=22687994
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/187,200 Expired - Lifetime US5494081A (en) | 1994-01-26 | 1994-01-26 | Wire twister pinion and assembly |
Country Status (1)
Country | Link |
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US (1) | US5494081A (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6283017B1 (en) * | 1995-10-24 | 2001-09-04 | L & P Property Management Company | Apparatus for tying and binding bales of compressed materials |
WO2006043844A1 (en) * | 2004-10-20 | 2006-04-27 | South Fence Machinery Limited | Wire twisting apparatus |
US20090253093A1 (en) * | 2006-06-06 | 2009-10-08 | Albaya Mazin M | Orthodontic Torque Pliers |
CN101950637A (en) * | 2010-09-30 | 2011-01-19 | 江阴华电新材料有限公司 | Wire twister |
US20110214579A1 (en) * | 2010-03-04 | 2011-09-08 | L & P Property Management Company | Knotter assembly |
US20140298770A1 (en) * | 2011-11-01 | 2014-10-09 | Bridgestone Corporation | Metal filament body connecting method and connecting device |
US9045245B2 (en) | 2010-03-04 | 2015-06-02 | L&P Property Management Company | Knotter assembly |
US9278772B2 (en) | 2014-02-20 | 2016-03-08 | L&P Property Management Company | Combination wire and plastic strapping device |
US9359094B2 (en) | 2014-03-10 | 2016-06-07 | L & P Property Management Company | Gripping mechanism |
US10351274B2 (en) | 2014-02-20 | 2019-07-16 | Accent Packaging Inc. | Combination wire and plastic strapping device |
US10684595B2 (en) | 2013-09-04 | 2020-06-16 | Accent Wire Holdings, LLC | Control user interface for tying system |
US20210016341A1 (en) * | 2019-07-18 | 2021-01-21 | Aptiv Technologies Limited | Apparatus and method for center twisting wires |
US11040789B2 (en) | 2014-02-20 | 2021-06-22 | Accent Wire Holdings Llc | Combination wire and plastic strapping device |
US11309105B2 (en) * | 2019-07-18 | 2022-04-19 | Aptiv Technologies Limited | Apparatus for center twisting wires |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1009006A (en) * | 1910-11-14 | 1911-11-14 | Norris W Young | Wire-twisting apparatus. |
US1334221A (en) * | 1919-04-23 | 1920-03-16 | Burns Peter Macdonald | Wire-twister |
US1460649A (en) * | 1920-05-13 | 1923-07-03 | Alec J Gerrard | Wire stretching and tying machine |
US2042843A (en) * | 1933-09-11 | 1936-06-02 | Harvey Herbert | Wire tying machine |
-
1994
- 1994-01-26 US US08/187,200 patent/US5494081A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1009006A (en) * | 1910-11-14 | 1911-11-14 | Norris W Young | Wire-twisting apparatus. |
US1334221A (en) * | 1919-04-23 | 1920-03-16 | Burns Peter Macdonald | Wire-twister |
US1460649A (en) * | 1920-05-13 | 1923-07-03 | Alec J Gerrard | Wire stretching and tying machine |
US2042843A (en) * | 1933-09-11 | 1936-06-02 | Harvey Herbert | Wire tying machine |
Non-Patent Citations (2)
Title |
---|
U.S. Wire Tie Systems Operating & Maintenance Instructions and Repair Part List Model 1302 Portable Pneumatic Wire Tieing Machine. * |
U.S. Wire-Tie Systems-Operating & Maintenance Instructions and Repair Part List-Model 1302 Portable Pneumatic Wire-Tieing Machine. |
Cited By (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6283017B1 (en) * | 1995-10-24 | 2001-09-04 | L & P Property Management Company | Apparatus for tying and binding bales of compressed materials |
WO2006043844A1 (en) * | 2004-10-20 | 2006-04-27 | South Fence Machinery Limited | Wire twisting apparatus |
EP1824624A1 (en) * | 2004-10-20 | 2007-08-29 | South Fence Machinery Ltd. | Wire twisting apparatus |
EP1824624A4 (en) * | 2004-10-20 | 2008-04-16 | South Fence Machinery Ltd | Wire twisting apparatus |
US20090272457A1 (en) * | 2004-10-20 | 2009-11-05 | South Fence Machinery Limited | Wire twisting apparatus |
US20090253093A1 (en) * | 2006-06-06 | 2009-10-08 | Albaya Mazin M | Orthodontic Torque Pliers |
US9090367B2 (en) | 2010-03-04 | 2015-07-28 | L&P Property Management Company | Method for removing a twist-module sub-assembly in a knotter assembly |
US20110214579A1 (en) * | 2010-03-04 | 2011-09-08 | L & P Property Management Company | Knotter assembly |
US8397632B2 (en) | 2010-03-04 | 2013-03-19 | L & P Property Management Company | Knotter assembly |
US8757055B2 (en) | 2010-03-04 | 2014-06-24 | L & P Property Management Company | Method for removing a twist-module sub-assembly in a knotter assembly |
US10266289B2 (en) | 2010-03-04 | 2019-04-23 | Accent Packaging. Inc. | Method for removing a twist-module sub-assembly in a knotter assembly |
US9045245B2 (en) | 2010-03-04 | 2015-06-02 | L&P Property Management Company | Knotter assembly |
CN101950637A (en) * | 2010-09-30 | 2011-01-19 | 江阴华电新材料有限公司 | Wire twister |
US20140298770A1 (en) * | 2011-11-01 | 2014-10-09 | Bridgestone Corporation | Metal filament body connecting method and connecting device |
US9194079B2 (en) * | 2011-11-01 | 2015-11-24 | Bridgestone Corporation | Metal filament body connecting method and connecting device |
US10684595B2 (en) | 2013-09-04 | 2020-06-16 | Accent Wire Holdings, LLC | Control user interface for tying system |
US11040789B2 (en) | 2014-02-20 | 2021-06-22 | Accent Wire Holdings Llc | Combination wire and plastic strapping device |
US9278772B2 (en) | 2014-02-20 | 2016-03-08 | L&P Property Management Company | Combination wire and plastic strapping device |
US10351274B2 (en) | 2014-02-20 | 2019-07-16 | Accent Packaging Inc. | Combination wire and plastic strapping device |
US9359094B2 (en) | 2014-03-10 | 2016-06-07 | L & P Property Management Company | Gripping mechanism |
US20210016341A1 (en) * | 2019-07-18 | 2021-01-21 | Aptiv Technologies Limited | Apparatus and method for center twisting wires |
US10946434B2 (en) * | 2019-07-18 | 2021-03-16 | Aptiv Technologies Limited | Apparatus and method for center twisting wires |
US11309105B2 (en) * | 2019-07-18 | 2022-04-19 | Aptiv Technologies Limited | Apparatus for center twisting wires |
US20220199294A1 (en) * | 2019-07-18 | 2022-06-23 | Aptiv Technologies Limited | Method for center twisting wires |
US11517957B2 (en) * | 2019-07-18 | 2022-12-06 | Aptiv Technologies Limited | Apparatus and method for center twisting wires |
US11600409B2 (en) * | 2019-07-18 | 2023-03-07 | Aptiv Technologies Limited | Method for center twisting wires |
US11783970B2 (en) | 2019-07-18 | 2023-10-10 | Aptiv Technologies Limited | Method for center twisting wires |
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Date | Code | Title | Description |
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AS | Assignment |
Owner name: ILLINOIS TOOL WORKS INC., ILLINOIS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WIEDEL, JOHN;REEL/FRAME:006872/0589 Effective date: 19931119 |
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Owner name: L&P PROPERTY MANAGEMENT COMPANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ILLINOIS TOOL WORKS INC.;REEL/FRAME:007411/0001 Effective date: 19950421 |
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